23. I’m preparing the report for tomorrow’s meeting. Would you please _____ the radio a little?
| A．turn on | B．turn off | C．turn up | D．turn down |
In most western countries, on April Fool’s Day，people often play _____ trick on each other; children especially have great _______ fun.
| A．a；a | B．the；the | C．不填；a | D．a；不填 |
Though we don’t know what was discussed, yet we can feel the topic_______.
| A．had changed | B．will change |
| C．was changed | D．has been changed |
-Tom has a lot of parties recently.
- Yes, that may ________ why he didn’t do well in the test.
| A．sum up | B．add up to |
| C．account for | D．make sense of |
The teacher asked us to read the text________ second time to find________ topic of the text.
| A． a; the | B．a; a | C．the; the | D．the; / |
It was the order that all the soldiers ________to the front.
| A．should send | B．must be sent |
| C．be sent | D．must go |